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The guides in this section will assist you in setting up and configuring WHMCS modules. The Guide column points to the module guide page, while the Module column shows where the module can be downloaded. Check out What's New to see the updates and improvements.

The update (18/01/2016) of the WHMCS modules includes improved validation where there is no username attached to a service which is deleted. Under previous releases this scenario could lead to the first user on the cloud being deleted. Due to this we would strongly advise to upgrade.

This documentation is provided by

Cloud Module (.zip, 18th April 2016,560 kB, v1.6.9)The Cloud module allows you to sell groups of resources to clients, where they can then create, build, reboot, shut down, start up, rebuild and delete virtual servers directly from WHMCS within the limits of the resources given.

OnApp WHMCS Cloud Module Guide

Billing Module (.zip, 18th April 2016, 596 kB)WHMCS Billing module allows you to set up additional billing options and produce invoices for your clients.

OnApp WHMCS Billing Module Guide

User Module (GitHub; v3.5.1)The OnApp Users module for WHMCS allows you to create, suspend and activate users directly from WHMCS. Clients then log directly into OnApp to build and manage their VSs with WHMCS handling billing. To learn how this module integrates with OnApp, refer to WHMCS Integration for VSP.OnApp WHMCS Users Module Guide
Reseller Module (.zip, 18th April 2016, 168 kB, v1.6.9)The Reseller Module allows you to create your own branded VPS module to provide to your resellers. Your resellers then manage their own customers and orders through their own WHMCS.

OnApp WHMCS Reseller Module Guide

VPS Module (.zip, 03rd November 2016, 266 kB, v1.7.0)The WHMCS VPS Module allows your clients to create, build, reboot, shut down, start up, and rebuild a single VPS directly through WHMCS.

OnApp WHMCS VPS Module Guide

Load Balancer Module (.zip, 18th April 2016, 384 kB, v1.6.9)The OnApp WHMCS Load Balancer Module allows your clients to order and manage Load Balancers directly from WHMCS.

OnApp WHMCS Load Balancer Module Guide

DNS Module (.zip, 18th April 2016, 48 kB, v1.6.9)DNS Module allows your clients to manage DNS zones and records directly through WHMCS.

OnApp WHMCS DNS Module Guide

CDN Module 1 (.zip, 18th April 2016, 176 kB, v1.6.9)
CDN Module 2 (.zip, 18th April 2016, 176 kB, v1.6.9)
The CDN Module makes it possible for your clients to manage CDN resources from the WHMCS.
If you are using the old CDN module which is no longer supported - use migration tool to switch to the current CDN Module.  
OnApp WHMCS CDN Module Guide
Custom Templates ( .zip, 18th April 2015, 1.88 MB) You can use a custom template order instead of the standard template. 

We recommend you to make WHMCS backup prior upgrading to new modules.       

Please note, currently the WHMCS modules do not support incremental backups.
In case of usage of WHMCS modules, the use of incremental backups will be impossible.